| article html file updated | 7 February 2020 20:35 CET | Update | https://www.mdpi.com/1420-3049/22/1/55 |
| article html file updated | 22 September 2019 16:46 CEST | Update | N/A |
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| article html file updated | 30 December 2016 11:41 CET | Original file | N/A |
| article xml uploaded. | 30 December 2016 11:39 CET | Original file | https://www.mdpi.com/1420-3049/22/1/55/xml |
| article pdf uploaded. | 30 December 2016 11:39 CET | Version of Record | https://www.mdpi.com/1420-3049/22/1/55/pdf |
